#include<stdio.h>
#include<unistd.h>
#include<stdlib.h>
#include<string.h>


int main()
{
  const char*str="我是fwrite\n";
   
   printf("我是printf\n");
   fprintf(stdout,"我是fprintf\n");
   fwrite(str,1,strlen(str),stdout);
  
   const char* s="我是write\n"; //常量字符串
   write(1,s,strlen(s));

   fork();
   return 0;
}

